A current is passed through a resistor and the voltage drop is measured on the other side. It follows Ohm's law by a given current and voltage you can measure the resistance of a resistor by V=IR.
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Test Prod Scale meter Zero corrector Zero Ohms adjust Scale selector
Typical VOMs can measure both AC and DC.
The ohm is a measurement of resistance named after Goerg Ohm. It was not "created".
M ohm means "mega ohm". That is 106 = 1,000,000 ohms.
5CommentThe plural of ohm is ohms, not ohm's!